Answer:
a.) They refused to apologize for mistakes.
Explanation:
The author compare the Puritans with other groups of their time because they refused to apologize for their mistakes of practicing religion other than Christianity. The Puritans came to the Americas to expand upon Puritan religion which was not allowed in their own country. They did not apologize for their choosing another religion and prefer migration to the New land where they are free to practice their religion.